1995 Ford Windstar cooling system problems

I asked the seller at ford to completely service the van before I would buy it. He said his mechanic would. I checked the van out two weeks later, low on oil, no brake fluid, trans fluid very low, no water hardly at all in receiver, then the starter went out, replaced it no good, replaced switch, no good, brakes gone out, can't keep fluid in systems, engine light came on, emission problems, mechanic stalls for the hour amount, and still can't fix/test II code. Inside lights dim when extra. Lights come on.

Took 1995 ford windstar to haldeman ford (this where I purchased the van), because it was overheating, they made the repair which we paid $614.54 and told us that we needed a head gasket, we had an extended warranty for the used vehicle and that was suppose to be included on the warranty, but they told us that because we did not maintenance the car the proper we had to pay for it ourself, and that we had to buy a new engine (not a head gasket like they said at first) and pay out of our pocket $3,000 not including…